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kendreae kendreae
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7 years ago
Experiments involving pieces of aluminum foil placed on the lunar surface by the Apollo XI astronauts proved that 
A)  sunspots actually occur. 
B)  sunspots exhibit a cycle. 
C)  the solar wind consists of charged particles. 
D)  nuclear fission occurs in the Sun's interior.
Textbook 
Geosystems: An Introduction to Physical Geography

Geosystems: An Introduction to Physical Geography


Edition: 7th
Author:
Read 90 times
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One touch of nature makes the whole world kin.  William Shakespeare
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qvcqvc
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7 years ago
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kendreae Author
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7 years ago
Thanks
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Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
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2 hours ago
Brilliant
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